3 papers
gr-qc2024
Gravitational lensing by a stable rotating regular black hole
Chen-Hao Xie, Yu Zhang, Qi Sun +2
Recent observational data from the Event Horizon Telescope (EHT) collaboration provide convincing realistic evidence for the existence of black hole rotation. From a phenomenologic…
gr-qc2024
Shadow of Kerr black hole surrounded by a cloud of strings in Rastall gravity and constraints from M87*
Qi Sun, Yu Zhang, Chen-Hao Xie +1
Motivated by the first image of a black hole captured by the Event Horizon Telescope (EHT), there has been a surge of research using observations of black hole shadows to test theo…
gr-qc2023
Rotating and twisting charged black holes with cloud of strings and quintessence as a particle accelerator
Qi-Quan Li, Yu Zhang, Qi Sun +1
In this paper, we study the effects of the rotation parameter , the twist parameter , the string cloud parameter , the quintessence state parameter and the charge…